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Rifle Gravel Pit#1 April 2022 <br /> 1.3.1.1 Affected Lands <br /> Figure 2, Exhibit B depicts the Permitted Area, Affected Area, and 200-foot offset from <br /> Affected Lands. The Affected Land is 19.00 acres. <br /> 1.3.1.2 Planned Material Storage Area <br /> The excavated wet gravel material will be stockpiled at the site of extraction, and allowed to <br /> drain into the excavated pit and/or the underlying substrate. After the material is dry <br /> (approximately 24 hours), it will be transported to the Stockpile Area, where it will be stored <br /> until ready for loading at the adjacent Operations Area. The Operations Area will be a <br /> graded, compacted, graveled pad used to store equipment, pipes, fuel, scale house, <br /> restroom trailer and construction materials. Stockpiled material to be screened will be placed <br /> away from the active mining locations, and adjacent to the Operations Area as depicted in <br /> Figure 9, Exhibit C4 and Figure 10, Exhibit C5, which depict the mining activity extent at <br /> 30% and 60% mined conditions, respectively. <br /> 1.3.1.3 Planned Topsoil &Overburden Storage Area <br /> The extent of the planned stockpile areas were calculated assuming that all overburden <br /> material and topsoil that are not used for the construction of perimeter berms will be <br /> stockpiled on site, and retained for final reclamation purposes, with surplus material to be <br /> sold as topsoil and clean fill, respectively. The location of the stockpile area is depicted on <br /> Figure 9, Exhibit C4 and Figure 10, Exhibit C5. Earthwork volume calculations are <br /> provided in Figure 14, Exhibit E2. A typical soil profile illustrating the average conditions <br /> underlying the Permitted Area is provided in Figure 12, Exhibit D1. <br /> Approximately 0.5 feet of topsoil material on average will be cut from the Affected Lands, <br /> corresponding to approximately 10,627 cubic yards (CY), of which 2,392 CY will be used for <br /> topsoil and revegetation of the earthen berm and 637 CY will be used for reclamation in the <br /> pond wetland slope area. The remaining 7,598 CY will be sold as topsoil for landscaping <br /> and other reclamation projects. <br /> Between 1-7 feet of overburden material on average will be cut from the Affected Lands, <br /> corresponding to approximately 53,135 cubic yards (CY), of which 12,163 CY will be used <br /> for construction of the earthen perimeter berms. The remaining 40,972 CY will be sold as <br /> clean fill material for other projects. <br /> These stockpile areas will be placed as shown, outside of the mining footprint but inside the <br /> perimeter berm, which provides physical separation between the stockpiles and any wetland <br /> or tailwater channel buffer areas, and will prevent inadvertent sediment discharges. <br /> 1.4 Total Parcel Size <br /> The Rifle Pit#1 Property Boundary/parcel size is 58.7 acres. <br /> 1.5 Commodity to be Mined <br /> The site has approximately 292,000 CY of(dry) sand and gravel that will be mined from the <br /> property to provide materials for future projects. The projected duration of the commercial <br /> mining activities is three to five years. <br /> 1.6 Legal Description of the Permitted Area <br /> 2 <br />